272 



L. H. Pammel. 



Name of seed 



Numbei" 

 of seeds 

 per gram 



Weight of 

 one seed iu 

 Milligrams 



Lepidium apetalum (Peppergrass) . 

 Liatris punctata (Blazing-star) . 

 Medicago denticulata (Bur Clover) 

 ,, lupulina (Yellow trefoil) 



„ sativa (Alfalfa) .... 



Monarda fistulosa (Horsemint) . . 

 Muhlenbergia glomerata (Drop-seed) 

 „ ynexicana . . . . 



Nepeta cataria (Catnip) .... 

 Oxyhaphus nydaginea (Oxybaphus) 

 Panicum capiUare (Old Witch Grass) 

 „ crus galli (Barnyard Grass) 

 „ gldbrum (Smooth Crabgrass) 

 „ sajiguinale (Grab grass) . 



Paspalum 



Fhleum pratense (Timothy) . 

 Physalis puhescens (Ground Cherry) 

 Plantago aristata (Bracted Plantain) 

 „ laneeolata (Rib-grass) . . 



,, Rugelii (Rugel's Plantain) 

 Poa prateyisis (ßlue-grass) . . . 



„ serotina (False Red Top) . 

 Polygonum incarnatum (Smartweed) 

 „ persicaria (Lady's Thumb) 



„ hydropiper (Smartweed) . 



„ hydropiperoides (Smartweed) 



„ convolvulus (Black Bindweed) 



„ pennsylvanicum (Smartweed) 



Potentilla norvegica (Five-finger) 

 Bumex acetosella (Sheep Sorrel) 

 „ crispus (Curly Dock) 

 ,. obtusifolius (Dock) . 

 Saponaria vaccaria (Cowherb) . 



Salsola Jcali 



Serophularia yiodosa (Simpson Honey Weed) 

 Setaria glauca (Pigeon Grass) 



2515 

 300 

 370 

 692 

 452 

 1080 

 9400 



1076 

 404 

 2592 

 1400 

 3700 

 3640 



2888 



760 



1152 



1704 



17050 



10370 



640 



712 



216 



200 



11880 



2000 



728 



846 



228 



1300 



6690 



368 



